Sunday, 19 May 2013

British hop imports in the 20th century

It's one of those special treat days. Where, as a reward for being good, I give you a bug, fat, juicy table. Several tables, in fact

The tables in question have details of the hops grown, imported, exported and used in the UK from 1857 to 1954. So almost 100 years' worth of hoppy fun.

One of the drums I particularly like to bang is about Britain's dependence on foreign hops in the second half of the 19th century. You can see it clearly in the table. Between 1870 and 1900 Britain imported 100,00-200,000 cwts. of hops each year and accounting for probably about a third of the hops used.

I'd expected that. What I hadn't foreseen was how steeply imports fell off after WW I. By 1924 they were at about half the level of  1900. By the 1930's, hop imports had halved again, averaging about 37,000 cwts. a year 1930 to 1938. That's quite a turnaround.

WW II basically brought imports to a halt, and though there was a small boom in 1946, after 1949 the quantities imported were minimal.

This table shows how the use of foreign hops declined:


Percentage of imported hops used
year % of hops used in UK year % of hops used in UK year % of hops used in UK year % of hops used in UK
1920 100.34% 1930 15.93% 1940 5.84% 1950 0.12%
1921 54.35% 1931 22.91% 1941 0.01% 1951 0.27%
1922 38.80% 1932 6.71% 1942 1.28% 1952 0.22%
1923 3.46% 1933 19.21% 1943 0.08% 1953 0.47%
1924 24.72% 1934 12.08% 1944 0.00% 1954 1.41%
1925 25.41% 1935 13.62% 1945 0.25%
1926 10.38% 1936 11.80% 1946 13.43%
1927 29.31% 1937 14.54% 1947 3.33%
1928 20.66% 1938 15.80% 1948 1.96%
1929 20.24% 1939 2.95% 1949 0.39%
Sources:
Brewers' Almanack 1955, page 63.
1971 Brewers'Almanack, page 54
1928 Brewers' Almanack, page 119


The reason for the fall in imports can be explained very simply: the gravity drop caused by WW I. The weaker beer produced after the war required fewer hops. As the level of UK production had remained relatively unchanged, for the first time in many decades Britain was almost self-sufficent in hops.

It's interesting that, despite all the upheavals of two world wars, British hop production was relatively stable between 1890 and 1850. As this table demonstrates:


Average annual UK hop production
years cwt.
1890 283,629
1900 347,894
1910 302,675
1920 - 1929 302,241
1930 - 1939 235,930
1946 - 1947 284,797
Sources:
1928 Brewers' Almanack, page 119
Brewers' Almanack 1955, page 63.

The main table also shows the volatility of the price of hops. The price could change by 100% or more from one season to the next. For example, 1928 to 1929, 1932 to 1934 and 1933 to 1934.

Hop exports increased significantly after WW I, but nmuch of this is explained by Irish independence. After 1923 hops shipped to the Republic of Ireland were counetd as exports. In the years 1923 to 1925 this acoounts for most of the hops exported.
 
Hops: home production and imports 1857 - 1954
Year ended 31st Dec. Acreage Estimated Produce Yield per acre Average Price of English Hops per Season, Sept. to Dec. Imports: Less Re-Exports Exports: British Hops Consumption Years ended 30th Sept. following
Cwts. Cwts. £ s. d. Cwts. Cwts. Cwts.
1857 50,974 426,049 8.35 4 2 8 18,711
1860 46,271 99,667 2.15 17 5 0 68,918
1870 60,594 700,000 11.55 3 7 8 127,853 3,365
1880 66,698 440,000 6.60 4 6 0 195,987 7,218
1890 53,961 283,629 5.26 10 9 4 181,698 6,164
1900 51,308 347,894 6.78 5 18 8 198,494 14,999
1910 32,886 302,675 9.20 5 6 6  172,032 8,927
1914 33,661 507,258 13.84 4 3 9 83,690 9972 450,231
1915 34,744 254,101 7.31 6 7 0 199,347 8,288
1916 31,352 307,856 9.82 6 14 0 146,150 10,765 263,386
1917 16,946 225,763 13.32 8 15 0 8,530 12,796
1918 15,666 130,491 8.3 18 15 0 259 6,923 503,140
1919 16,745 187,795 11.21 20 5 0 154,091 2,606
1920 21,002 281,042 13.4 19 10 0 455,799 3,672 454,258
1921 25,133 224,172 8.9 19 10 0 216,571 2,200 398,506
1922 26,452 301,000 11.4 12 0 0 127,539 2,818 328,688
1923 24,893 229,000 9.2 14 10 0 12,111 22,051 350,428
1924 25,897 444,000 17.1 10 5 0 89,632 44,316 362,554
1925 26,256 355,000 13.5 10 15 0 90,305 44,541 355,376
1926 25,599 332,000 13 11 5 0 35,040 78,574 337,721
1927 23,004 255,000 11.1 12 10 0 96,917 54,630 330,662
1928 23,805 242,100 10.2 11 16 0 66,183 17,651 320,315
1929 23,986 359,100 15 5 0 0 62,208 13,192 307,289
1930 19,997 253,000 12.6 4 15 0 44,199 22,302 277,406
1931 19,628 169,000 8.7 7 5 0 50,303 22,388 219,587
1932 16,531 188,000 11.4 9 15 0 14,952 19,264 222,868
1933 16,895 210,000 12.8 16 10 0 44,829 20,298 233,419
1934 18,037 259,000 14.4 9 0 0 30,046 13,382 248,744
1935 18,251 248,300 13.6 9 0 0 35,186 16,223 258,300
1936 18,317 252,000 13.7 9 0 0 31,953 19,987 270,692
1937 18,093 235,000 13 9 0 0 40,406 16,130 277,846
1938 18,460 257,000 13.9 9 0 0 45,287 12,580 286,716
1939 18,812 288,000 15.3 9 10 0 7,840 16,050 265,512
1940 18,592 270,500 14.5 12 0 0 14,675 26,830 251,354
1941 18,158 262,800 14.5 15 0 0 31 17,209 223,007
1942 18,420 261,900 14.2 17 10 0 2,963 30,673 231,689
1943 19,131 285,200 14.9 18 0 0 198 24,941 243,900
1944 19,603 253,900 13 20 0 0 -- 26,525 244,822
1945 19,957 282,900 14.1 21 0 0 574 32,337 226,197
1946 21,163 257,451 13.4 22 10 0 29,243 35,056 217,759
1947 22,142 289,908 13.2 23 10 0 7,716 31,661 231,470
1948 22,787 273,584 12 25 15 0 4,561 29,135 233,168
1949 22,196 250,406 11.3 26 10 0 900 42,301 232,979
1950 22,198 368,313 16.6 21 0 0 269 84,027 229,106
1951 22,460 321,824 14.3 26 0 0 626 107,738 228,512
1952 22,279 282,349 12.7 28 3 0 502 76,620 225,569
1953 21,932 272,593 12.3 27 10 0 1,015 64,762 216,841
1954 20,760 246,748 11.9 29 0 0 3,075 51,323 217,716
Sources:



Brewers' Almanack 1955, page 63.
1928 Brewers' Almanack, page 119, 1971 Brewers'Almanack, page 54



Saturday, 18 May 2013

Replacing American hops

The idea of growing American-style hops isn't a new one. Attempts were already being made before WW II to breed varieties with the characteristics of American hops which could be grown in Britain.

As I've pointed out before, from the 1860's on, large quantities of American hops were used by British breweries.

"American hops also have a characteristic aroma while they possess a high preservative value and impart a rather stronger flavour to the beers. Very few of these hops are used in the mild flavoured beers brewed in the South of England, but most of the brewers in the North and in Scotland use a small proportion, the annual consumption in Great Britain being 20,000 to 30,000 cwt.

An endeavour has been made at Wye College under the direction of Prof. Salmon to produce new varieties of hops having the same characteristics of American hops which could be grown in this country, the idea being, that they could replace imported hops and give the English grower the benefit of the increased output. Up to the present over 500 of these new varieties have been grown up at East Malling Research Station and a large number have been subjected to brewing trials. From the results obtained at least five have been selected as suitable for replacing American hops. These have been named by Prof. Salmon as follows:— Early Promise (X.35), Brewers Favourite (O.P.21), Brewers Gold (C.9a), Bullion Hop (0063), and Fill Pocket (Z.62), and already several of these are being grown on a commercial scale. Growers, however, have been discouraged in their efforts to grow these hops partly by the very low values placed on them by the Hops Marketing Board and partly by the disinclination of the brewers to buy them."
Journal of the Institute of Brewing Volume 46, Issue 4, August 1940, page 276.
To contextualise that quantity of American hops, in 1940 265,512 cwts of hops were used in British brewing*. Which means about 10% of the total came from the USA. That's considerably less than in the 1860's:


British hop imports from USA
year cwt.
1864 47,625
1869 117,102
Sources:
The Temperance Record, 1870, page 214.
Kentish Gazette - Tuesday 06 March 1866, page 3.

Though that can partly be accounted for by the large drop in the quantities of hops used in Britain. In 1914 it was 559,423 cwts*, more than double the amount used in 1940. The drop in beer gravity as a result of WW I greatly reduced the demand for hops.

Getting back to those new hop varieties, Brewers Gold and Bullion are still going strong. I never realised they were Britain's response to high-alpha acid American varieties. It sounds as if they had a difficult start in the UK. Mostly because of the price growers could get for them.

"Difficulties have also arisen in granting extra acreage for their growth and efforts made to straighten this out have only so far resulted in a deadlock. In view of the exceptionally high preservative value these new varieties possess, growers had anticipated that they would obtain a high valuation and were very discouraged with the low price they received.

. . . . .

The Research Fund Committee has appealed to the Brewers' Society to endeavour to secure a more favourable valuation, from the growers point of view, by the Hops Marketing Board, in order to encourage their growth, and as a result Mr. Toswill, who has had a lengthy experience of these hops, was invited by the Hop Valuation Committee this year to assist them in their valuation.
Journal of the Institute of Brewing Volume 46, Issue 4, August 1940, page 276.
It's understandable that farmers would unwilling to plant these new varieties in large numbers if they didn't feel they would get the price they thought they deserved for them.

Various North American hops had been used as one of the parents for these new varieties:

"While some of these new varieties have been produced from an Oregon hop as parent, those giving the highest yields and the highest preservative value have been produced from a Manitoba or a Mexican hop as the parent. These hybrids possess a rather unusual aroma derived from their parent which has probably had something to do with their low valuation, and certainly appears to be the reason for the lack of enthusiasm on the part of brewers to try them. "Brewers Gold" and "Bullion Hop," both of which are now being planted on a small scale by a few growers, have had repeated brewing trials, and those have proved that the peculiar aroma does not come through into the beer, while the flavour is quite equal to that of choice American hops."
Journal of the Institute of Brewing Volume 46, Issue 4, August 1940, page 276.
In the 19th century American hops were often criticised for having an unusual aroma. Which is why they were mostly used as bittering hops and were often kept for a year or two before use. From this description, it sounds as id Brewers Gold and Bullion really were good substitutes for American hops.

The American habit of prizing hops for their alpha acid content is also nothing new:

"It is interesting to note that in Canada and the U.S.A., where the value of hops is assessed on their preservative value as well as flavour, growers are planting "Brewers Gold" as fast as they can obtain sets from this country. It is quite possible, therefore, that in the not far distant future we shall be importing those in place of the present type of Oregons, which would indeed be paradoxical. It has been a source of keen disappointment to Prof. Salmon, who has devoted 20 years in an endeavour to produce hops capable of replacing those imported from America which can be grown in this country, that when he has achieved his object he should see the prize slipping out of his grasp. It would indeed be fitting if this war was instrumental in enabling him to see his dream realised, which is an additional hop acreage of 3,000 acres planted with his hops."
Journal of the Institute of Brewing Volume 46, Issue 4, August 1940, page 277.

Did the Prof. Salmon's nightmare of Britain importing Brewers Gold and Bullion become reality? Probably.




* 1953 Brewers' Almanack 1955, page 62.

Friday, 17 May 2013

Drybrough PI 1914 - 1919 (part two)

I bet you thought I'd forgotten about this, the second part of my look at Drybrough PI in WW I. I hadn't. Just got distracted by holidays and the like.

And, yes, the quantity of data to fiddle with put me off, too. At this rate my series on Drybrough's beer will last until judgement day. Or maybe a little longer. We may have devolved back into worms by the time I'm done.

Some general remarks to start with. The recipes for all three beers are generally similar: 80% pale malt, 20% sugar (or sugar and flaked maize). Which is pretty typical for all Pale Ales of the period. It's a point I've made many time before, but I'll repeat it again: crystal malt in Pale Ales was almost unknown before WW I and not common until after WW II.

Note that pale malt (or the closely related PA malt) is the only malt used in any of the beers. Though it's also clear that Drybrough's and Fuller's beers have been darkened with some sort of sugar. I suspect that Whitbread were colour adjusting with caramel at racking time. That's what they did after the war to hit their colour standard.

Which begs the question, when did they stop trying to make Pale Ale as pale as possible and start deliberately darkening it? Looking over my tables, it seems Fuller's started adding caramel to AK in 1902. Barclay Perkins started adding caramel to their Ordinary Bitter, XLK, just before the outbreak of WW I. Interesting, that. I wonder what the reason was? Because it's before the big drop in gravity, which would have been an obvious cause.

Whitbread were the most conservative, or consistent, depending on how you look at. As the "other sugar" is almost certainly No. 1 invert, there's almost no change at all. Except that in 1917 and 1918 the percentage of sugar fell, because it was rationed:

"About this [October 1917] time sugar became rationed and brewers were only allowed to use 25 per cent, of the amount they used in 1915."
Journal of the Institute of Brewing Volume 46, Issue 4, August 1940, page 273.
The effect of sugar rationing is also apparent in the grists of Drybrough and Fuller's. In October 1917 the percentage of sugar in Drybrough's PI grist fell from 9% to 5%. At Fuller's the reduction was even more dramatic, from 10-15% to just over 2%.

As a result of the lowering of the amount of sugar used, the malt percentage in the grist went over 90% at all three breweries. Ironic, that a side-effect of the war should be to increase the malt content of beer. Though it is logical. Barley has limited use in feeding humans, whereas the opposite is true of sugar.

British brewers' love of sugar is demonstrated by the fact that when it became available again, the percentage used went back up to pre-war level, or even a little higher.

Drybrough's use of Poperinge hops throughout the war is a bit surprising. Especially as they weren't all from the pre-war crop. In 1918 they were using ones from the 1916 harvest. While Poperinge was in the corner of Belgium unoccupied by the Germans, it was just behind the front lines and subject to shelling and other disruption.

Fuller's used Poperinge hops, too, but only at the start of the war and after its end. The main attraction of this type of hops was their price. They were amongst the cheapest available. For most of the war, like Whitbread, Fuller's used English hops, mostly from Kent. There were plenty to go around. The reduction in demand for hops caused by falling gravities produced a glut of English hops. Only government intervention stopped most farmers going bust.


Drybrough PI 1914 - 1919
Date Year Beer OG FG ABV App. Atten-uation pale malt no. 1 sugar no. 2 sugar no. 3 sugar no. 4 sugar caramel glucose other sugar total sugar flaked maize flaked rice hops
29th Dec 1914 PI 1044.0 1015.0 3.84 65.91% 82.31% 2.89% 5.78% 0.36% 9.03% 4.33% 4.33% Californian and English
5th Jan 1915 PI 1044.0 1014.0 3.97 68.18% 82.40% 4.29% 5.15% 0.43% 9.87% 7.73% Californian and English
8th Jan 1915 PI 1044.0 1014.0 3.97 68.18% 73.93% 2.84% 5.69% 5.69% 0.47% 14.69% 11.37% Californian and English
14th Jul 1915 PI 1044.0 1013.0 4.10 70.45% 81.28% 4.28% 5.70% 0.18% 10.16% 8.56% Californian and English
14th Dec 1915 PI 1042.0 1013.0 3.84 69.05% 82.62% 2.62% 6.56% 0.33% 9.51% 7.87% Poperinge and English
7th Jan 1916 PI 1045.0 1014.0 4.10 68.89% 81.47% 3.67% 5.87% 0.18% 9.72% 8.81% Poperinge and English
18th Jul 1916 PI 1043.0 1013.0 3.97 69.77% 82.07% 3.70% 5.18% 0.18% 9.06% 8.87% Poperinge, New Zealand and English
4th Aug 1916 PI 1043.0 1013.0 3.97 69.77% 82.25% 9.14% 0.18% 9.31% 8.44% Poperinge, New Zealand and English
18th Oct 1916 PI 1042.0 1013.0 3.84 69.05% 81.47% 3.67% 5.87% 0.18% 9.72% 8.81% Poperinge, New Zealand and English
16th Jan 1917 PI 1041.0 1012.0 3.84 70.73% 80.61% 3.84% 6.14% 0.19% 10.17% 9.21% Poperinge, New Zealand and English
13th Feb 1917 PI 1036.0 1012.0 3.18 66.67% 80.50% 3.35% 5.87% 0.21% 9.43% 10.06% Poperinge, New Zealand and English
14th Aug 1917 PI 1035.0 1010.0 3.31 71.43% 85.09% 0.98% 7.82% 0.24% 9.05% 5.87% Poperinge, New Zealand and English
15th Aug 1917 PI 1034.0 1010.0 3.18 70.59% 85.51% 3.80% 1.90% 0.24% 2.85% 8.79% 5.70% Poperinge, New Zealand and English
16th Aug 1917 PI 1035.0 1010.0 3.31 71.43% 80.98% 4.50% 8.90% 0.22% 13.62% 5.40% Poperinge, New Zealand and English
17th Aug 1917 PI 1035.0 1010.0 3.31 71.43% 85.09% 1.96% 4.89% 0.24% 1.96% 9.05% 5.87% Poperinge, New Zealand and English
17th Aug 1917 PI 1029.0 1009.0 2.65 68.97% 85.09% 1.96% 4.89% 0.24% 1.96% 9.05% 5.87% Poperinge, New Zealand and English
20th Aug 1917 PI 1034.0 1010.0 3.18 70.59% 82.15% 0.98% 5.87% 0.24% 1.96% 9.05% 8.80% Poperinge, New Zealand and English
19th Oct 1917 PI 1033.0 1010.0 3.04 69.70% 90.85% 1.26% 3.79% 0.32% 5.36% 3.79% Poperinge and English
23rd Oct 1917 PI 1037.0 1011.0 3.44 70.27% 86.65% 0.88% 3.50% 0.22% 0.88% 5.47% 7.88% Poperinge and English
6th Nov 1917 PI 1038.0 1013.0 3.31 65.79% 88.68% 2.77% 1.85% 0.23% 0.92% 5.77% 5.54% Poperinge and English
21st Dec 1917 PI 1037.0 1011.0 3.44 70.27% 84.92% 4.92% 0.31% 2.46% 7.69% 7.38% Poperinge and English
22nd Jan 1918 PI 1037.0 1011.0 3.44 70.27% 84.03% 4.38% 1.75% 0.22% 1.75% 8.10% 7.88% English
27th Jan 1918 PI 1037.0 1011.0 3.44 70.27% 83.30% 5.21% 0.22% 3.47% 8.89% 7.81% English
19th Feb 1918 PI 1038.0 1010.0 3.70 73.68% 83.72% 6.77% 1.69% 0.21% 8.67% 7.61% English
26th Feb 1918 PI 1037.0 1010.0 3.57 72.97% 84.46% 7.04% 0.29% 1.17% 8.50% 7.04% English
5th Mar 1918 PI 1038.0 1010.0 3.70 73.68% 83.30% 6.94% 0.87% 0.22% 0.87% 8.89% 7.81% English
8th Mar 1918 PI 1038.0 1011.0 3.57 71.05% 85.23% 2.27% 2.27% 5.68% 1.14% 11.36% 3.41% English
23rd Jul 1918 PI 1030.0 1009.0 2.78 70.00% 91.18% 2.94% 3.92% 1.96% 8.82% Poperinge and English
13th Aug 1918 PI 1030.0 1009.0 2.78 70.00% 85.40% 2.92% 1.46% 7.30% 2.92% 14.60% Poperinge and English
23rd Oct 1918 PI 1030.0 1009.0 2.78 70.00% 91.18% 6.86% 1.96% 8.82% Poperinge and English
29th Oct 1918 PI 1030.0 1010.0 2.65 66.67% 85.40% 5.84% 7.30% 1.46% 14.60% Poperinge and English
24th Jan 1919 PI 1030.0 1009.0 2.78 70.00% 89.61% 10.39% 10.39% Poperinge and English
28th Jan 1919 PI 1030.0 1010.0 2.65 66.67% 87.88% 8.08% 4.04% 12.12% Poperinge and English
7th Feb 1919 PI 1030.0 1010.0 2.65 66.67% 85.71% 7.14% 7.14% 14.29% Poperinge and English
2nd Jul 1919 PI 1029.0 1010.0 2.51 65.52% 100.00% 0.00% English
3rd Jul 1919 PI 1031.0 1010.0 2.78 67.74% 91.43% 8.57% 8.57% English
8th Jul 1919 PI 1030.0 1009.0 2.78 70.00% 87.34% 5.06% 7.59% 12.66% English
Source:
Drybrough brewing record held at the Scottish Brewing Archive, document number D/6/1/1/3

Whitbread FA 1914 - 1919
Date Year Beer OG FG ABV App. Atten-uation pale malt PA malt no. 1 sugar other sugar hops
28th May 1914 FA 1047.4 1013.0 4.55 72.55% 22.28% 57.92% 19.80% EK
4th Jun 1914 FA 1047.1 1013.0 4.51 72.39% 22.28% 57.92% 19.80% EK
22nd Jun 1914 FA 1047.6 1014.0 4.45 70.62% 22.28% 57.92% 19.80% EK
8th Oct 1914 FA 1048.5 1015.0 4.43 69.06% 22.28% 57.92% 19.80% EK
29th Jan 1916 FA 1045.4 1013.0 4.29 71.38% 23.94% 55.85% 20.21% EK
18th May 1917 FA 1045.7 1010.0 4.72 78.12% 26.16% 57.56% 16.28% EK
24th Jul 1917 FA 1033.2 1005.0 3.74 84.96% 22.12% 61.95% 15.93% EK
11th Oct 1917 FA 1035.2 1005.0 3.99 85.79% 22.73% 68.18% 9.09% EK
5th Jun 1918 FA 1032.7 1008.0 3.27 75.52% 29.22% 68.18% 2.60% EK
3rd Jul 1918 FA 1032.6 1007.0 3.38 78.51% 27.86% 60.37% 11.76% EK
30th Oct 1918 FA 1032.4 1005.0 3.63 84.57% 21.33% 59.72% 18.96% EK
5th Feb 1919 FA 1032.1 1006.0 3.46 81.33% 21.63% 59.13% 19.23% EK
19th Mar 1919 FA 1032.4 1007.0 3.36 78.40% 21.95% 58.54% 19.51% EK
Source:
Whitbread brewing record held at the London Metropolitan Archives document number LMA/4453/D/01/079, LMA/4453/D/01/080, LMA/4453/D/01/081, LMA/4453/D/01/082 and LMA/4453/D/01/084.

Fuller's AK 1914 - 1919
Date Year Beer OG FG ABV App. Atten-uation pale malt no. 2 sugar glucose invert sugar caramel total sugar primings flaked maize hops
20th Nov 1914 AK 1044.3 1009.1 4.65 79.38% 78.89% 5.84% 5.84% 0.17% 15.26% 3.40% 5.84% MK, Poperinge, Cobbs and Oregon
8th Dec 1914 AK 1044.1 1009.4 4.58 78.63% 81.38% 5.56% 5.56% 12.36% 1.23% 6.26% MK, Poperinge, Cobbs and Oregon
2nd Jul 1915 AK 1044.5 1009.7 4.61 78.22% 78.96% 6.68% 6.68% 14.77% 1.40% 6.27% MK and Cobbs
1st Jun 1916 AK 1043.9 1009.7 4.53 77.93% 79.27% 6.61% 6.61% 15.77% 2.56% 4.95% MK and Cobbs
3rd Aug 1916 AK 1042.7 1008.9 4.47 79.23% 82.40% 4.85% 4.85% 12.75% 3.06% 4.85% MK and Cobbs
26th Oct 1916 AK 1041.0 1006.6 4.54 83.78% 80.05% 6.47% 8.09% 15.10% 0.55% 4.85% MK and Cobbs
3rd Nov 1916 AK 1041.7 1005.8 4.74 86.04% 80.16% 5.73% 5.73% 14.12% 2.67% 5.73% MK and Cobbs
12th Jan 1917 AK 1041.8 1007.8 4.50 81.44% 80.82% 5.26% 5.26% 13.27% 2.76% 5.91% MK and Cobbs
19th Jan 1917 AK 1040.7 1007.5 4.40 81.63% 82.98% 5.40% 5.40% 10.95% 0.16% 6.07% MK and Cobbs
13th Apr 1917 AK 1041.5 1008.3 4.39 79.99% 83.03% 5.40% 5.40% 10.90% 0.10% 6.08% MK and Cobbs
20th Jun 1917 AK 1038.6 1006.4 4.27 83.51% 86.64% 3.85% 5.78% 13.36% 3.74% MK and Cobbs
8th Aug 1917 AK 1035.4 1006.4 3.84 82.00% 97.77% 2.23% 2.23% MK and Cobbs
1st Nov 1917 AK 1035.9 1007.8 3.73 78.41% 92.36% 0.17% 2.42% 2.25% 5.23% MK and Cobbs
14th Nov 1917 AK 1036.1 1008.3 3.68 76.98% 92.38% 0.23% 2.31% 2.09% 5.31% MK and Cobbs
2nd Jan 1918 AK 1035.5 1007.5 3.70 78.92% 92.13% 5.94% 0.13% 7.87% 1.80% MK and Cobbs
16th Jan 1918 AK 1036.1 1011.1 3.32 69.35% 91.58% 3.05% 3.05% 0.16% 8.42% 2.15% MK and Cobbs
11th Apr 1918 AK 1026.1 1005.5 2.73 78.81% 74.94% 12.49% 12.49% 0.08% 25.06% 0.00% MK and Cobbs
20th Jun 1918 AK 1026.2 1005.5 2.73 78.84% 74.65% 19.14% 3.83% 0.09% 25.35% 2.29% MK and Cobbs
7th Nov 1918 AK 1025.7 1005.0 2.74 80.60% 77.55% 18.35% 0.18% 22.45% 3.92% MK and EK
16th Jan 1919 AK 1026.1 1006.1 2.64 76.62% 78.14% 8.14% 8.14% 0.17% 21.86% 5.41% MK and EK
15th Apr 1919 AK 1026.0 1004.4 2.86 82.98% 74.21% 6.06% 8.08% 0.26% 21.25% 6.85% 4.54% MK and WK
19th Jun 1919 AK 1028.2 1004.7 3.10 83.28% 77.72% 6.76% 6.76% 0.14% 15.52% 1.86% 6.76% MK and WK
25th Jun 1919 AK 1028.0 1005.3 3.01 81.21% 78.01% 8.00% 6.00% 0.27% 15.99% 1.72% 6.00% MK and Cobbs
27th Aug 1919 AK 1030.5 1006.9 3.12 77.31% 74.03% 8.80% 8.80% 0.16% 17.91% 0.16% 8.06% English and Poperinge
Source:
Fuller's brewing records held at the brewery.